執(zhí)行以下命令序列顯示的DT值為()
A.06 B.99 C.20 D.6
A.SAVE ALL LIKE ??M? TO ST B.SAVE ALL LIKE **M* TO ST C.SAVE ALL EXCEPT ??M? TO ST D.SAVE ALL LIKE ??M* TO ST
A.scatter to B.gather from C.copy to D.append from